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Worksheet 283 · Skill 6

Course to steer

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  1. You are at 079°T, 1.5 nm from Westfield church spire, bound for Red nun "2". Your speed through the water is 9.7 kn. The current sets 190°T at 1.6 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  2. You are at 023°T, 2.6 nm from Mill stack, bound for Bell buoy "HS". Your speed through the water is 8.2 kn. The current sets 241°T at 1.9 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  3. You are at 220°T, 2.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.4 kn. The current sets 281°T at 0.7 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  4. You are at 310°T, 2.6 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 8.3 kn. The current sets 255°T at 2.5 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  5. You are at 085°T, 3.2 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 8.5 kn. The current sets 354°T at 2.5 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  6. You are at 265°T, 2.2 nm from Gannet Rock daybeacon, bound for Red nun "2". Your speed through the water is 6.2 kn. The current sets 149°T at 2.1 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  7. You are at 034°T, 1.4 nm from Heron Point Light, bound for Green can "3". Your speed through the water is 9.3 kn. The current sets 298°T at 1.7 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

  8. You are at 066°T, 2.6 nm from Westfield church spire, bound for Green can "3". Your speed through the water is 9.8 kn. The current sets 211°T at 1.6 kn.

    Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.

    Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).

    Course to steer: ________ °T   Speed over the ground: ________ kn   Time to the mark: ________ min  

Practice Sheet No. 1

Practice Sheet No. 1 with the starting fixes of this worksheet 34 41 22 38 29 18 27 44 12 21 19 N VAR 7°W (invented) Heron Sound Heron Point Tern Island Westfield Kittle Gannet Rock Fl W 4s 52ft 14M TR TANK SPIRE STACK Dbn 1 2 3 HS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Border scale: nautical miles (1 nm = 10 ticks) PRACTICE SHEET No. 1 · HERON SOUNDInvented for practice · NOT FOR NAVIGATION · Plotroom Start Start Start Start Start Start Start Start

Answer key

No.AnswersProblem
1Course to steer: 112 °T
Speed over the ground: 10.2 kn
Time to the mark: 19 min
No. 283001 (worked solution)
2Course to steer: 047 °T
Speed over the ground: 6.4 kn
Time to the mark: 66 min
No. 283002 (worked solution)
3Course to steer: 235 °T
Speed over the ground: 6.9 kn
Time to the mark: 20 min
No. 283003 (worked solution)
4Course to steer: 184 °T
Speed over the ground: 9.4 kn
Time to the mark: 32 min
No. 283004 (worked solution)
5Course to steer: 123 °T
Speed over the ground: 7.2 kn
Time to the mark: 21 min
No. 283005 (worked solution)
6Course to steer: 290 °T
Speed over the ground: 4.7 kn
Time to the mark: 33 min
No. 283006 (worked solution)
7Course to steer: 068 °T
Speed over the ground: 8.3 kn
Time to the mark: 25 min
No. 283007 (worked solution)
8Course to steer: 106 °T
Speed over the ground: 9.5 kn
Time to the mark: 23 min
No. 283008 (worked solution)